Automatic power supply switching control execution method for failures of regional power grid main equipment

Abstract

The invention relates to a power grid power supply switching control execution method for failures of regional power grid equipment, in particular to an automatic power supply switching control execution method for the failures of regional power grid main equipment. An automatic power supply switching policy is obtained on the basis of a progressive main grid reconstruction technology and a power supply switching recovery path and has the characteristics of logicalization, methodization and effectiveness, and then a regional main grid switch is remotely controlled in an in-turn composite series-parallel remote control way which contains feedback unlocking logics, so that the overload of the main equipment is quickly eliminated or limited, the execution efficiency is improved, the execution time limit and the safety of power grid operation are guaranteed, the safety operation of the power grid main equipment is guaranteed, and the aims of assisting scheduling and monitoring staff to analyze and judge the failures of a power grid and improving the treatment efficiency of the failures are achieved.

Description

technical field [0001] The invention relates to a power grid transfer control execution method when regional power grid equipment fails, in particular to a regional power grid main equipment failure automatic power supply control execution method. Background technique [0002] The failure of the main equipment (220kV main transformer or line) of the regional power grid caused the overload of the equipment, which needs to be quickly eliminated or limited. According to the past experience of the dispatching and monitoring personnel, the two methods to deal with this failure are nothing more than switching the power supply or limiting the power supply. . In the case of major power grid accidents, it is necessary to quickly restore the power outage load or switch some loads to limit the overload of the main equipment. At present, the usual way is that the dispatcher calls the operation station or the monitoring personnel to operate remotely, and the speed is slow. Untimely load...

AI Technical Summary

Problems solved by technology

[0003] If the main equipment failure of the regional power grid is automatically transferred to the power supply control, if the traditional serial remote control method is implemented, the advantage is that only one main network switch is allowed to operate at a time, and the remote control is safe; the disadvantage is that it takes a long time to remotely control all the main network switches. less efficient

If it is executed according to the traditional parallel remote control method, its advantages are: multiple main network switches can be operated at the same time at one time, the execution time is short, and the efficiency is high; the disadvantage is: multiple main network switches are operated at the same time, which increases the risk of remote control security

[0004] However, according to the principle that when the main equipment of the regional power grid fails, it is required to quickly eliminate the fault in the shortest time or limit the overload of the main equipment, and at the same time ensure the safe operation of the power grid, neither the serial remote control method nor the parallel remote control method can meet the requirements.